PSG are thrillingly good going forward and will, without doubt, score goals against Man United.

But this is a team which, for all its glitz and prestige, can be deeply unsettled if your team can press the right buttons.

Lyon’s game plan was quite simple: to take advantage of Marquinhos in defensive midfield by flooding the area in behind him with precise passes and darting runs, inviting attacking players to attack the space. It unsettled PSG, who deserved to lose, and Solskjaer will know United can do the same thing to the French champions.